Battery vent cap



FIG. 1 is a perspective view of a battery vent cap showing my newdesign;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof.

The ornamental design for a battery vent cap, as shown and described.